Stock-fitting machine



June 14, 'l 927. 32,232

J. E. JACKSON STOCK FITTING MACHINE Filed July 18, 1921 2 Sheets-sheet 1 un 14 1927. v J e J. E. JACKSON ST( )GK FITTING MACHINE 2 shuts-sum 2 Patented June 14, 1927.

STATES PA JAMES E JAQKSON, OF LYNN, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHIN- ERY CORPORATION, OF PATERSON; NEW JERSEY, A CORPORATION OF NEW srooienrr'rine riraomnn Application filed. July 18,

This invention relates to stoclofitting machines, and is illustrated as embodied in a machine for channeling and grooving soles for .Mcliay shoes.

A machine of this character is usually providedwithan L-shaped channeling knife and the sole is commonly fed against the l nife by means of a positively driven serrated feed wheel or. roll arranged to engage the flesh side of the sole, and a smooth feed roll and a, stationary presser foot arranged to engage the grain side of thesole in the vertical plane of the horizontal cutting edge of the knife. The stationary foot bears on the sole with crmsiderable force to insure proper cutting by the knife, and (.lragging the solo past such a foot requires a great deal of power.

An object of this invention is to lessen the power required, and to eliminate the necessity for the smooth feed wheehby substituting a roller presser foot for the stationary foot, by which arrangement the serrated feed wheel is sufficient to feed the sole, it being opposed only by the knife and the slight rolling friction of the foot. Previous attempts toutilize a roller foot have been unsuccessful, because the roller could not be placed sufficiently close to the vertical plane of the horizontal cutting edge of the knife, 011 account of the necessity of clearing the vertical edge of the knife, it being apparent that the diameter of even the smallest pos sible roll is suflicient to place the work-engaging portion ofthe roll too far ahead, of the knife when the roll has to clear the vertical portion of the knife.

This diiliculty has been solved, in accordance with one feature of the presentinvention, by supporting a roller presser foot at one end only, and arrangingan L-shaped channeling knife with its vertical cutting portion passing directly across the unsupported end of the roll, withthe vertical cutting edge just behind the vertical diameter of the roll, so that the work-engaging portion thereof bearsthe same relation to) the horizontal cutting edge of the knife as does the stationary foot in. the usual con struction of the machine. If desired, an auxiliary presser member herein'shown as a small stationary fOOhlTlZlY be added to cooperate with the vertical portion of the knife, a comparatively light pressurebeing required for holding the work against such 1921. Serial no. 485,551.

a vertical edge, and a footof small size being suflicient. by such a small stationary foot, at the relatively light pressure which is sufficient, is too small to detract materially from the benefit of the roller foot. I I

Soles are usually guided through stockfitting machines of this character by the hand of an operator, and at a narrow part, such as a shank portion which projects be yond the serrated feed wheel, the sole is not so large but that the fingers of the operator sometimes engage the feed wheel. A further object of this invention, accordingly, is to avoid such annoyance by associating with the feed wheel a. safety guard which is ar-; ranged relatively to the outer side face and periphery of the feed wheel in a manner to prevent the operatofsifingers from engaging the movingwheel. For convenience in car-' ing for the machine, I prefer to mount this guard so that it may be swung back without removing it.

Thus the drag on the works Further features of the invention are to be found in an improved guide to remove the string of waste cut by the grooverknife, an improved combination of stock-fitting tools and driveimechanism which permits either manual or variable-speed power drive, and in various combinations and specific constructions which will beevident from the following description of the illustrative machine shown in the accompanying drawings,

in which Fig. 1 is a front elevation, partly insection, of the machine;

' Fig. 2 is a perspective of the tool-carrying head, showingpart of the feed-wheel and its associated safety guard; V

Fig. 3 shows the relative positions of feed wheel, roller foot, channel knife, and groover knife in operating on a sole;

Fig. i is an exploded perspective view showing the means for adjusting the roller foot; V

Fig.5 is a side elevation of the roller foot; and 1 Fig:6 is a view of the actuatinglever for the clutch.

The machine which'has been selected for illustrative purposes in describing the inven tion is a stock-fitting machine of the type known as a McKay channeler. (It is a bench machine, "comprising generally a base 10, upon which is .supported a frame 12, in

which is journalled a power shaft 14 and also a feed-wheel shaft 16 driven from shaft A serrated feed-wheel 20 is vremovably mounted on one end of shaft 16 14 by gears 18.

by means of a suitable screwthreaded into the end of the shaft, and carries a bevel gear crank lever 31 against spring 32.

surface which drives an edge gage 22. The edge gage is carried on a, spring-pressed slide which can be withdrawn by rocking bell crank 24 by operating a treadle rod 26.

'llhechannel and g'roover knives are carried by a head 28 pivotally mounted on frame 12 at 30, which maybe lifted by a second.

treadle-"rod (not shown) which rocks 2i hell 1. set screw 33 is provided to limit the downward uioveine'nt of the head 28; As these parts are allwell ijmowntothoseskilled in the art, no further description of themis considered necessar H v p i I In order to secure'the advantages of both hand operation and a 'variable-speed' power drive, therefli's provided an improved, stopp ng' and starting mechanism comprising a hand wheel 40' keyed to shaft 14,1 and a belt pulley 42 loosely mounted thereonl A spring 44 constantly urges the hand whe'el and the pulley apart, to permit, manual loperauon. To. permit of variable speed power operation, the pulley 42 may bepressed' with greater for less force into frictionalengagement with the hand wheel 40 by operation of a Wedge 46 by means of alever'48 (or spring -pressed.treadle rod 50 actuated bya suitable treadle, not shown). Thewedge 46' foo-operates with a second wedge 52, which is prevented from turnin'gby an extension which engages the wedge 46.

Lever 48 is pivoted on the frame 12a 56 apd may eXtend below the pivot to carryv a brake-shoe. 5 8,,wh1ch engages the rim of hand wheel 40 to prevent over-runningwhen the clutch is thrown out for manual opera tion. v

i order to protect the fingers of the operator, thereis provided a novel safety guard consisting ofa support "60, securedto the frame at es ate a guard member 64 mounted thereon by means'ofa hinge 66. The guard member 6415 located opposite the outer side face of" the feed wheel and is formed with acurvedouter marginconcentrio with the periphery of the feed wheel and arranged closely adjacent to said periphery. A torsion spring 68 urges memv ber (54 into active position beside'the'feed 7 Wheel 20, while yet permitting it tobe sivui' g ba-ck out- 0f the wayso that it avillnot in terfere, with the removal of the feed wheel 20. 1

is usual channelingma chines, the channel knife 0 is mounted for adjustment the head 28 on a slide 72 which can be moved vertically by turning lower portion of the.

an adjusting screw 74, and the groover knife 76 is mounted on a second slide 78 which can be adjusted vertically by turning an adjusting screwf80., The groover knife may be, lifted from the worl; independently of the channel knife, for channeling about the toe, by raising the slide 78 against a coil spring 82 by a treadle-controlled lever 84 the connections from the lever passing through a slot 85 in the side plate 86 of head 28, as is well-known to those skilled in the art.

As explained above, an improved groover string guide or remover 87 directs the string of waste removed by the groover knife.

This guide is secured to the slide 7 8 by a screw 88,so tnat it may be: placed on existing machines without changing them othel wise if desired. The screw 88 passes through an outer plate or support, and then through a vertical slot 91 in the upper portion of the string guide, so that the guide may be moved vertically or angularly, and

held in adjusted position bytightening the screw 88; v The string guide 87 is made up of an upper plate like portion,containing the slot above referred to, and a lower or guide portion, pivoted together at 93 so that the lower portion maybe swung towardfiand from the groover knife an adjusting screw 89 whichengagesfthe lower portion of the guide at a point below the pivot 93.

The improved guide is open atf the top and is of relatively large cross-section, so that it does not readily becomeclogg'ed. As it is mounted on the slide which carries the groover knife, it accompanies that knife when it is raised andvloivered.

The head '28 is formed with an extension upon whichis adj ustablyniounted a novel tion of the knife comes just behind the vertical plane passing through the axis of the roller foot, thus securing the same 'efii- Hill cient relationjof partsas with a f'etationarv foot. Since the: vertical shank portion of the knife 70 is beveled, as shown in Fig. '3.

to produce its vertical cutting edge the thickncss of the stock in this poitioii of the knife may prevent the roller lpresser foot from being located as close to the vertical cutting edge as is desirable to insure clean and accurate cutting and accordingly an auxiliary presser member, herein shown as a small stationary presser foot 94 (Figs. l and is arranged to cross the end of the roller foot 92 to co-operate with the vertical portion of knife 70. This arrangement will be apparent from a comparison of Figs. 3 and l.

The stationary auxiliary presser member or foot 94L is adjustably secured to a plate 96 by screws 98, and the roller foot 92 is mounted on plate 96 by a small spindle projecting therefrom. The roller foot is supported when pressed against the work by a small anti-friction roll .100 carried by the plate J6. The plate 96 is arranged for llOllZOI'ltEll adjustment on a plate 102, which in turn is mounted for vertical adjustment on an extension 80, screws- 1 serving to move the plates to make necessary adjust ments, and a clamp screw 106 serving to clamp them in adjusted position.

The operation of'the machine will be apparent from the foregoing description. l'i'hen a sole is to be channeled, the bell crank 31 is rocked by its treadle to raise the head 28, and thesole is inserted. The le er l8 is depressed, either by hand or by means of its treadle, and the sole is fed forward. As the toe is approached, if the too is to be nailed as is usual 'ith pointed lvlcliay shoes, the groover knife is raised by actu ating the treadlecontrolled lever iii to raise the slide 78, and when the bend at the tee is reached, the lever 4:8 is released and the hand-wheel ll) is operated to turn the toe. After passing the toe, the lever 48 is again operated, and the groover knife is lowered at the proper point. The head 28 may be raised to withdrawthe sole when it is finished, or the knives may simply be allowed to run out at the end of the sole.

While my invention hasbeen illustrated and described as embodied in a particular type of stoclcfitting machine, it is not the intention to limit its scope thereby, or otherwise than by the terms of the appended claims.

Having described my inventioinwhat I claim as new and desire to secure by Letters Patent of the United States is:

l. A machine for channeling soles comprising, in combination, an l.-shaped channel knife having a horizontal portion to provide a horizontal cutting edge and a vertical portion to provide a vertical cutting edge, a sole-supporting feed wheel, a roller presser foot arranged with the vertical plane through its axis in close proximity to the horizontal cutting edge of the knife and with one end face opposed to the side of the vertical portion of the knife, a spindle carrying the roller presserfoot, and means for supportingsaid spindle only at the end of the foot opposite from the vertical portion of the knife.-

2. A channeling machine as defined by claim- 1, in combination with an auxiliary presser foot at the end of the roller foot and co-operating with the vertical cutting edge of the channel knife.

3. A machine for channeling McKay soles comprising, in combination, a solesupporting feed wheel, a roller presser foot for engaging a sole supported by the feed wheel, an L shaped channel knife having a horizontal portion extending beneath the roller foot shaped to provide a horizontal cutting edge approximately in the vertical plane; through the axis of the roller foot and a vertical portion extending across one end of the roller foot shaped to provide a vertical ciiitting edge in the vertical plane through the horizontal cutting edge, and a roll arranged to engage the periphery of the roller foot'to support the roller footwhen the latter is pressed against the work.

l. A stock-fitting machine comprising, in combination, a sole support, a roller presscr foot for engaging a sole on the support, a channel knife having a cutting edge extending beyond one end of the roller foot, and an auxiliary presser member for engaging the work in line with said extension of the cutting edge. y

5. A stock-fitting machine comprising, in combination, a tool to operate on work' guided by the hand of an operator, a serrated, positively rotated work supporting feed wheel, and a safety guard located opposite the outer side face of the feed wheel and having a curved cuter margin concentric with the periphery of the feed wheel and arranged closely adjacent to said. periphery.

6. A stock-fitting machine comprising, in

combination, a tool to operate on work guided by the: hand of an operator, a serrated positively-rotated work simporting feed wheel, a frame for the machine, and a safety guard consisting of a part fastened to the frame, a second parthinged thereto at right angles to extend across theside ot' the feed wheel to prevent the fingers of the operator from coming into engagement therewith, and a spring holding the second part in operative position while permitting it to be swung back. i

7. For use in alilcKay sole channeling machine which has a groover knife, a springpressed slide for the knife," a manuallycontrolled lever, a connection betweenthe lever and said slide for raising theknife, a device for guiding and removing the string of waste cut by the groover knife comprising a support portion to extend upwardly and be mounted on the connection between the lever and the slide, and a guide portion pivoted to the supportportion for adjust,-

;ment towardand from the groover knife,

said guide portion extending downwardly and forwardly to receivethe string of waste operator engaged 111 feed asit is cut, and means for varying the ac]- justmentof said guide portion.

8; A stock-fitting machinecomprising, in combination, a tool for operating progressively ona piece of work, a feed wheel to feed work guided by the left hand of an operator thereto, a rotary shaft parallel to the axis of the'feed wheel and arranged to drive the wheel, a hand wheel inunovably mounted on the shaft for manual operation of the machine by the right hand of an H i 11;; the work wit his left hand, a belt, pulley loosely mounted on the shaft beside the hand wheeha wedge slidabletransversely.on the shaft to force ,the pulley into frictional engagement with the hand wheel to provide a power dr ve variable in speeo according to the extent of movement of the or; g and a lever for manual manipulation of the wedge alternatively with the hand wheel. V 9; A machine as defined by claim 8, in combination with a friction b c :e arranged toengage the hand wheel and connected. to the lever to be operated by release.

10. A sole channeling machine comprising, in combinatiomasole support, a sw ng ing head, an L-shaped channel knife rar- Tied-by. the head having horizontal and vertical' portions shaped to provide horizontal and vertical cutting edgesrespectively, a first member adjustable on the headand a second member adjustable on the first member, one member being adjustable vertically and the other being adjustable in a: direction perpendicular to the edge of a sole onthe support, and a roller presser foot carried and adjusted by the said members and arranged to co-operate with the channel knife, said roller presser 7 foot being supported at one end only and being arranged with the face at its unsup ported endopposed to the side of the ver- 'tica-l portion of the channel knife.

11. A sole channeling machine,comprising, in combinatioina channel knife having a vertical cutting edge and a horizontal. cutting edge relativelyarranged to channel a sole for a liicK-ay sewed shoe, and a preeser foot therefor having a. rotary part above and extending on both sides of the horizontal cutting edge and a stationary part nnniedlately nrfront of the vertical.

cutting edge. e

knife,

12. A McKay sole channeling machine having, in combination, a roller presser foot supported at one end only, and a sole channeling knife having a vertical cutting portion extending across the unsupported end of the foot and a horizontal cutting edge extending below the foot. v

13. A machine for channeling soles comprising, in combination, an l--shaped channel lrnife having adjacent horizontal and vertical faces beveled to produce respectively horizontal and vertical cutt ng edges, a sole-supporting feed wheel, a'roller pres-i ser foot' supported at one end only and arranged with its axis approximately in the verticalplane through the hori/iontal cutting edge of thelrnife and was the face at its unsupported end opposed to the vertical beveled face of the knife, and an auxiliary presser foot locatedbetween said end face and said beveled face for co-operating with the vertical cutting edge.

1 A stock-fitting machine comprising, in combination, a tool to operate on work guided by the hand of an operator, a removable work-supporting feed wheel, a safety guard located opposite the outer side face of the feed. wheel and having a curved outer margin concentric with the periphcry of the feed Wheel and arranged closely adjacent to said periphery, a fixed support for the guard, and connections between the guard and the support constructed and a1 ranged to permit the guard to be moved away from the feed wheel to permit removal of the latter. I

15.. For use in a lrlcliay sole channeling machine having .a groover knife, a springpressed slide-for the knife, a inainially controlled lever, a connectionbetween the lever and the slide for raising the knife, a device for guiding and removing the string of waste cut by the groover knife comprising a support port-ionmounted upon the connection between the lever and the slide, a guide portion pivoted to the support pOLtlbn for adjustment toward'aiul from the groover sz guide portion extending downwardly andforwardly to receive the string of waste as it is out, and means for varying the adjustn'ient ofthe guide portion.

in testimony, whereof l have signed my name to this specification.

' JAMES E. JACKSON.

lOOf 

